huh, that's weird, turn c/r river check by villain

[HOWMANY]

Villain is pretty tight. Him having an A here makes no sense. I was obviously going to vb river if he c/c turn and check river. I was obviously going to calldown after this turn c/r. Do I have a value bet or a check here? I'm quite perplexed by his line.

PokerStars 15/30 Hold'em (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is BB with T[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, SB completes, <font color="#CC3333">Hero raises</font>, SB calls.

Flop: (4 SB) 8[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

Turn: (3 BB) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, Hero calls.

River: (7 BB) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero?